The freedom of science in the modern state : A discourse delivered at the third general meeting of the 50th conference of the German Association of Naturalists and Physicians at Munich, on the 22nd of September, 1877. With a new pref. by the author. Translated from the German, with the author's sanction.
- Rudolf Virchow
- Date:
- 1878
Licence: Public Domain Mark
Credit: The freedom of science in the modern state : A discourse delivered at the third general meeting of the 50th conference of the German Association of Naturalists and Physicians at Munich, on the 22nd of September, 1877. With a new pref. by the author. Translated from the German, with the author's sanction. Source: Wellcome Collection.
Provider: This material has been provided by the Gerstein Science Information Centre at the University of Toronto, through the Medical Heritage Library. The original may be consulted at the Gerstein Science Information Centre, University of Toronto.
40/102 (page 12)
![standing of our relations to the external world, and for discriminating more precisely the purely mental part of vision from the part of it which is purely physical. Thus a certain part of optical science, and, at the same time, of physiology, is constructed quite anew. Chemistry comes forward to take its share in the investigation of problems with which it has hitherto had no concern, namely, in the highly important questions—What is this purple colouring [Selipurpur) ? What sort of a substance is it ? How is it formed, how destroyed ? how restored again ? The solution of these questions cannot fail to lay open a new province of research : we may hope soon to make fresh progress in the department of technical photograjjhy, and to learn how to obtain coloured photograms. ] * Thus do we make mingled advances, half within the intellectual, and half within the physical region. And therefore it is that I say, with every real advance in the knowledge of nature, there must needs be a number of](https://iiif.wellcomecollection.org/image/b20995738_0040.jp2/full/800%2C/0/default.jpg)